Kapuas River

River in West Kalimantan, Indonesia

The Kapuas River (Old Indonesian/Dutch spelling: Kapoeas River) is a river in the Indonesian part of Borneo island, at the geographic center of Maritime Southeast Asia. At 1,143 km (710 mi) in length, it is the longest river on the island of Borneo, the longest river in Indonesia and one of the world's longest island rivers. It originates in the Müller mountain range at the center of the island and flows west into the South China Sea creating an extended marshy delta.

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